5310-01-657-2100 WASHER,LOCK 5310-01-657-2470 WASHER,FLAT

National Stock Number:
5310-01-657-2112

Federal Supply Class:
5310

National Item Identification Number:
016572112

Description:
NUT,PLAIN,HEXAGON


Manufacturer Information:
AEN04C312000AZ7A8105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
B18.24-200405047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
B18.24-20040BTU8A & S SKILL MACHINISTS, INC.
B18.24-20045N116QUALITY SOCKET SCREW MANUFACTURING CORP
B18.24-20046U503LIBERTY FASTENER CO
B18.24-20048A1E8KAREN CARLISLE


Techincal Specification:
BEARING SURFACE TYPEFLAT OR CHAMFERED OR WASHER FACED
INSIDE WIDTH ACROSS FLATS0.489 INCHES MINIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, HEX
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM
NUT STYLEHEXAGON
SPECIAL FEATURESMATERIAL ASTM A563 (ST1318)
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM


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